Caterina auditions for a minor part in what would be her second movie. Her dancing and singing impresses the director so much, that he wants to give her the leading role. However the author Thomas Krauss objects, because he believes she's just a good singer and not talented enough as an actress. Caterina doesn't want to let go of her big chance and applies as maid in Krauss' house under a different name to convince him she can play the role.